CAJ | 학술논문

为了研究日本九州地区的2种区域性土--有明粘土和赤土作为废弃物填埋场底部粘土衬垫层的适应性,做了一系列室内扩散试验.应用软件Pollute V6.3模拟计算了实验结果,反算出了钾离子的扩散系数.研究结果表明,有明粘土的扩散系数比赤土的扩散系数小,说明有明粘土有望能作为更合适的粘土衬垫材料.通过对比试验研究,发现在混合溶液的情况下,钾离子的扩散系数较在单一溶液的钾离子的扩散系数小.因此建议尽可能使用与现场淋滤液成分相近的混合溶液来做扩散试验,以求出扩散系数来作为废弃物填埋场的设计和性能评估参数.
위료연구일본구주지구적2충구역성토--유명점토화적토작위폐기물전매장저부점토츤점층적괄응성,주료일계렬실내확산시험.응용연건Pollute V6.3모의계산료실험결과,반산출료갑리자적확산계수.연구결과표명,유명점토적확산계수비적토적확산계수소,설명유명점토유망능작위경합괄적점토츤점재료.통과대비시험연구,발현재혼합용액적정황하,갑리자적확산계수교재단일용액적갑리자적확산계수소.인차건의진가능사용여현장림려액성분상근적혼합용액래주확산시험,이구출확산계수래작위폐기물전매장적설계화성능평고삼수.
To investigate the potential use of two Japanese regional clayey soils, named Ariake clay and Akaboku soil, as soil barrier materials, a series of laboratory diffusion tests are presented. Using an available computer program Pollute V6. 3, the effective diffusion coefficients of K + of the soils were back-calculated from the diffusion tests. It is found that the Ariake clay has a larger effective diffusion coefficient than the Akaboku soil, indicating that the Ariake clay may provide a better diffusion barrier. A comparison of the effective diffusion coefficients between the single-salt solution condition and the multi-salt solution condition indicates that soils have higher effective diffusion coefficients under the former condition. It is suggested to use miscible solution close to landfill leachates for determining effective diffusion coefficients of specified chemical species for a practical design.